Actress Sarah Jessica Parker steps out for Beto O'Rourke

At a Tribeca Film Festival premiere of her new film "Blue Night," Sarah Jessica Parker talks about "Sex and the City" co-star Cynthia Nixon running for governor of New York. The actress also spoke about bringing the movie to the festival and singing onscreen. (April 20)
AP

Congressman Beto O'Rourke is challenging Senator Ted Cruz for Senate. Here is what you need to know about him.
Wochit

O'Rourke is challenging Republican Ted Cruz for his seat in the U.S. Senate. He started his campaign with little visibility outside of El Paso, but has improved his name recognition and made headlines for his fundraising prowess.

Sarah Jessica Parker was photographed wearing a button announcing her support for Beto O'Rourke's campaign. Parker is pictured with husband Matthew Broderick attend a screening of "'To Dust' on Monday.(Photo: Brent N. Clarke/Invision/AP)

Cruz criticized O'Rourke for his connections to high profile Democrats in a tweet last month, naming politicians and celebrities who have expressed support for O'Rourke.